12580220 has 12 divisors (see below), whose sum is σ = 26418504. Its totient is φ = 5032080.

The previous prime is 12580207. The next prime is 12580231. The reversal of 12580220 is 2208521.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 629011 = 12580220 / (1 + 2 + 5 + 8 + 0 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 12580192 and 12580201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314486 + ... + 314525.

It is an arithmetic number, because the mean of its divisors is an integer number (2201542).

Almost surely, 2^12580220 is an apocalyptic number.

12580220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12580220 is an abundant number, since it is smaller than the sum of its proper divisors (13838284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12580220 is a wasteful number, since it uses less digits than its factorization.

12580220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629020 (or 629018 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 12580220 is about 3546.8605836711. The cubic root of 12580220 is about 232.5748477562.

Adding to 12580220 its reverse (2208521), we get a palindrome (14788741).

The spelling of 12580220 in words is "twelve million, five hundred eighty thousand, two hundred twenty".